I haven't come across much of any nastiness about being bisexual. That could be because of the company I keep, or it could be because I've only been "out" for six months. And in that time I haven't told many people, simply because it hasn't come up.
But when I'm reading about bi-ness (or whatever you want to call it) I keep seeing that some people think we're confused. I especially keep seeing that on the Facebook group Bisexuality Is Real: teens (or adults) who are told that they're just confused, and that they need to choose one gender or the other.
Well guess what? I was confused. For years. Then I finally accepted that I'm bi, and I'm not so confused anymore. Now that I've accepted that I don't have to choose between men and women I'm not confused anymore when I can't keep my eyes off a hot woman. Yeah, for years I insisted that I was straight, I guess because I have a definite preference for men, and because of that I would get very uncomfortable when I found myself attracted to a woman.
So, far from being confused, figuring out that I'm bi has actually cleared up some confusion.